The AquaDisc is a training tool that uses water resistance for the workout. Made of EVA molded foam, the ergonomic design of the grip insures a safe workout without putting stress on the shoulders. The AquaDisc can be used in a wide variety of exercises for the arms and shoulders. Two discs produce enough buoyancy to hold grown adults above the water. Suitable for men, women, youths or senior citizens, fitness fans or athletes. Latex free. Sold in pairs.